ASTROSAT CZTI

Data Quality Report

Orbit 29719

Creation date: 2024-06-27T20:07:08.745706
Switch to: Orbit-wise | Merged OBSID-wise
web.py, SVN revision $Rev$

Source files: Data quality report (detailed, human readable) | Data quality report (concise, machine readable)

Observation information


Basic statistics of files

Param Original file Final file
FilenamemodeM0/AS1A10_007T01_9000004276_29719cztM0_level2.evt modeM0/AS1A10_007T01_9000004276_29719cztM0_level2_quad_clean.evt
Size (bytes)585,138,240103,829,760
Size558.0 MB 99.0 MB
Events in quadrant A3,203,636681,163
Events in quadrant B5,615,197691,109
Events in quadrant C4,223,941671,376
Events in quadrant D4,240,204649,255

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0135822
B0209422
C0168722
D0169232

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6474420.648749%
B64752253.474903%
C64752423.737452%
D6475781.204633%

Noise dominated fraction

Noise dominated data is calculated using 1-second bins in cleaned event files. If a bin has >2000 counts, and if more than 50% of those come from <1% of pixels, then it is considered to be noise-dominated and hence unusable.

Quadrant # 1 sec bins Bins with >0 counts Bins with >2000 counts High rate bins dominated by noise Noise dominated (total time) Noise dominated (detector-on time) Marked lightcurve
A 7574 6475 0 0 0.00% 0.00%
B 7575 6475 34 34 0.45% 0.53%
C 7575 6476 28 28 0.37% 0.43%
D 7575 6476 38 38 0.50% 0.59%

Top noisy pixels

Top three noisy pixels from each quadrant. If the there are fewer than three noisy pixels in the level2.evt file, extra rows are filled as -1

Pixel properties Quadrant properties
Quadrant DetID PixID Counts Sigma Mean Median Sigma
A 13 254 12178 67.91 830 814 167.3
A 3 137 8029 43.12 830 814 167.3
A 0 226 6838 36.0 830 814 167.3
B 6 159 1920167 12147.7 826 804 158.0
B 0 229 343787 2170.75 826 804 158.0
B 10 245 70665 442.15 826 804 158.0
C 3 233 863446 4557.24 808 819 189.3
C 14 238 132363 694.94 808 819 189.3
C 10 22 49303 256.14 808 819 189.3
D 8 195 716635 3748.02 805 786 191.0
D 7 80 160666 837.09 805 786 191.0
D 7 238 80773 418.79 805 786 191.0

Detector plane histogram (DPH)

Histogram calculated using DETX and DETY for each event in the final _common_clean file

Quadrant A Quadrant B
Quadrant D Quadrant C

Count rate plots and images

Plot type Count rate plots Images
Comparison with Poisson distribution
Blue bars denote a histogram of data divided into 1 sec bins.
Red curve is a Poisson curve with rate = median count rate of data.
Quadrant-wise count rates
Data is divided into 100 sec bins
Module-wise count rates for Quadrant A
Data is divided into 100 sec bins
Module-wise count rates for Quadrant B
Data is divided into 100 sec bins
Module-wise count rates for Quadrant C
Data is divided into 100 sec bins
Module-wise count rates for Quadrant D
Data is divided into 100 sec bins

Housekeeping plots

Parameter Plot
CZT HV Monitor
D_VDD
Temperature 1
Veto HV Monitor
Veto LLD
Alpha Counter
_CPM_Rate
CZT Counter
+2.5 Volts monitor
+5 Volts monitor
_ROLL_ROT
_Roll_DEC
_Roll_RA
Veto Counter